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For the Inventor, By the Inventor

Des Moines, IA, United States of America

Plastic Systems, Inc.


USPTO Granted Patents = 14

% Expired Patents = 14.3


Forward Citations = 164

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6 inventors (with patents filed for the assignee):

goldMedal David W Perkins (8 out of 19 patents)

silverMedal Lenard Cohen (5 out of 7 patents)

bronzeMedal Michael E Gordon (5 out of 8 patents)

4.  Paul Mills (3 out of 3 patents)

5.  William Hudspeth (2 out of 8 patents)

6.  Kevin R Stuart (1 out of 1 patent)

7.  Gianfranco Cattapan (0 patent)


14 patents:

1. 8016145 - Collapsible bulk container (2011-09-13),
2. 8016113 - Storage system with improved pole securement system (2011-09-13),
3. 7954670 - Container evacuation system (2011-06-07),
4. 7819269 - Bulk container (2010-10-26),
5. 6834792 - Interlocking container (2004-12-28),
6. 5813562 - Fluent container (1998-09-29),
7. 5775541 - Liquid container and valve (1998-07-07),
8. 5660119 - Lightweight structural beam (1997-08-26),
9. 5579953 - Liquid container and valve (1996-12-03),
10. 5191505 - Electro-static grounding device (1993-03-02),
11. 4755144 - Static grounding buckle having continuous contact (1988-07-05),
12. 4662695 - Static grounding buckle (1987-05-05),
13. 4596053 - Static control garment (1986-06-24),
14. 4551783 - Heel grounding strap (1985-11-05),
Plastic Systems, Inc. is a leading provider of customized plastic injection molding solutions for a wide range of industries. With over 30 years of experience, we specialize in designing and manufacturing high-quality plastic parts and components. Our state-of-the-art facilities and dedicated team of experts ensure top-notch production and delivery. We are committed to innovation, quality, and customer satisfaction.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 22 2026

14 Patents

#14 in Des Moines, IA

#132 in Iowa

#22,270 in US

#42,135 in the World

Des Moines, IA (US)
Des Moines, IA, United States of America

Plastic Systems, Inc.

Forward Citations = 164

6 inventors:

goldMedal David W Perkins (8 out of 19 patents)

silverMedal Lenard Cohen (5 out of 7 patents)

bronzeMedal Michael E Gordon (5 out of 8 patents)

4.  Paul Mills (3 out of 3 patents)

5.  William Hudspeth (2 out of 8 patents)

Please report any incorrect information to [email protected]
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